Screamin LS1 SS

iTrader: (1)

When I let it sit, cut it off...get back in...crank her up...the gas petal is stuck. When you give it the gas it almost breaks your neck when you take off. What's going on here? Something to do with the throttle body? Thanks

GREGGO

iTrader: (2)

What year? There is a TSB on the throttle cable sticking for 99 and 2000's. I'm not sure about the 01+. Better head for the dealer or get hold of the TSB.

BTW, anyone know who is posting the TSB's anymore?
The Crackeregg site was down the last time I checked.

BigTex

iTrader: (16)

Mine had the same issue. Dealer fixed the problem, but I forgot exactly what was done to solve it. It has made a world of difference.

graygmc

my dads 99 was doing that. so i got some TB cleaner and sprayed and wiped the TB. it worked for his truck so maybe it will work for you.

GREGGO

iTrader: (2)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by graygmc:
<strong>my dads 99 was doing that. so i got some TB cleaner and sprayed and wiped the TB. it worked for his truck so maybe it will work for you.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The TSB specificly says not to do that if I remember correctly. BTW, I'm still searching for the TSB source.

graygmc

only reason it probably says that is so you can take it in and then they charge you $85 for the same thing. nothing ever went wrong on my dads truck.

GREGGO

iTrader: (2)

If your under warranty, it costs nothing......I think they replace a spring or linkage.

jlwz71

iTrader: (3)

Increased Accelerator Pedal Effort (Replace Throttle Body) #00-06-04-007
Increased Accelerator Pedal Effort (Replace Throttle Body)
1999 -- 2000 Chevrolet and GMC C/K Pick Up Models (Silverado and Sierra)

with 4.8 L, 5.3 L, or 6.0 L V8 Engine (VINs V, T, U -- RPOs LR4, LM7, LQ4)

Condition
Some customers may comment on a higher than expected accelerator pedal effort from the idle position.

Cause
Condition may be caused by a tight throttle blade in the throttle body bore when in the closed position.

Correction

Notice
DO NOT adjust the shipping air screw to rotate the throttle body blade away from the throttle body bore. Adjusting the shipping air screw compromises the idle speed control, and may lead to other driveability concerns. Adjusting the shipping air screw may lead to reduced Idle Air Control valve durability.

Verify the cause for this condition is not a damaged or binding throttle cable.
FIGURE Figure 1 - Throttle Body Date Code Identification(c)




(1) Location of last 5 digits of Throttle Body Assembly Part Number
(2) Location of 4 digit Julian Date Code
(3) Throttle Body Assembly

Remove the throttle body (3) from the engine and inspect the 4 digit Julian date code (2) stamped on the bottom edge of the mounting flange. The Julian date code is stamped on the lower edge of the mounting flange, next to the gasket edge, on the side of the throttle position sensor. The stamped 5 digit code (1) is the last 5 digits of the Throttle Body Assembly Part Number. See Figure 1 - Throttle Body Date Code Identification.
If the Date Code is 2979 , or earlier, replace the Throttle Body Assembly. DO NOT attempt to adjust Throttle Body Assemblies.
Parts Information
Part Number
Description

17113557
Throttle Body, 4.8 L V8 w/Manual Transmission

17113583
Throttle Body, 4.8 L and 5.3 L V8 w/Automatic Transmission

17113558
Throttle Body, 6.0 L V8 w/Automatic Transmission

17113599
Throttle Body, 6.0 L V8 w/Manual Transmission

17113561
Seal, Throttle body (not shown)


Parts are currently available from GMSPO.

Warranty Information
For vehicles repaired under warranty, use:

Labor Operation
Description
Labor Time

J5492
Throttle Body Replace
Use Published Labor Time

<img border="0" alt="[Truck]" title="" src="graemlins/gr_truck.gif" /> <img border="0" alt="[hail]" title="" src="graemlins/gr_hail.gif" /> Thank me later <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Screamin LS1 SS

iTrader: (1)

Thanks guys. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" alt="[Truck]" title="" src="graemlins/gr_truck.gif" />

Ryan23silverado

iTrader: (1)

Hey Screamin' LS1 SS, jlwz71 is exactly right! Iv'e done lots of throttle body work to these trucks (knife edge butterfly, file shaft, cut screws...etc) Two others turned out perfectly, mine did too, but with that stupid gas pedal stiking feeling. So, after about an hour of staring at the throttle body and playing with it, it was as jlwz71 said "a binding of the butterfly in the throttle body". The only thing I did though to fix it was do what he said not to do. I adjusted the butterfly position screw a quarter turn, checked idle and it went up 100rpms. I then turned it back a quarter turn, checked idle and took it for a test drive. No more binding and a lot better throttle response with the TB mods. The TB mod stuff is fairly complicated. I'll get picks of mine to show people though soon. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />